Bis(allyl)-ruthenium(<scp>iv</scp>) complexes with phosphinous acid ligands as catalysts for nitrile hydration reactions
作者:Eder Tomás-Mendivil、Javier Francos、Rebeca González-Fernández、Pedro J. González-Liste、Javier Borge、Victorio Cadierno
DOI:10.1039/c6dt02375d
日期:——
Several mononuclear ruthenium(IV) complexes with phosphinousacid ligands [RuCl2(η3:η3-C10H16)(PR2OH)] have been synthesized (78–86% yield) by treatment of the dimeric precursor [RuCl(μ-Cl)(η3:η3-C10H16)}2] (C10H16 = 2,7-dimethylocta-2,6-diene-1,8-diyl) with 2 equivalents of different aromatic, heteroaromatic and aliphatic secondary phosphine oxides R2P(O)H. The compounds [RuCl2(η3:η3-C10H16)(PR2OH)]
Production process of N-substituted amide compounds
申请人:Mitsui Chemicals, Incorporated
公开号:US04835312A1
公开(公告)日:1989-05-30
An N-substituted amide compound is produced with a high yield by initiating a reaction among a starting amide compound such as a saturated or unsaturated, aliphatic or aromatic carboxylic acid amide, a halogen-substituted compound such as an alkyl halide and a strongly basic substance while maintaining the basic substance in a suspended state.
Cyanide as a primordial reductant enables a protometabolic reductive glyoxylate pathway
作者:Mahipal Yadav、Sunil Pulletikurti、Jayasudhan R. Yerabolu、Ramanarayanan Krishnamurthy
DOI:10.1038/s41557-021-00878-w
日期:2022.2
emerge that bypass the challenging reductive carboxylation steps to produce metabolic intermediates and compounds found in meteorites. These results suggest a simpler prebiotic forerunner of today’s metabolism, involving a reductive glyoxylate pathway without oxaloacetate and α-ketoglutarate—implying that the extant metabolic reductive carboxylation chemistries are an evolutionary invention mediated
Stabilizing the C−N Double Bond Character in Fumaramide with the Aid of Superacids
作者:Marie C. Bayer、Nikolaus Greither、Valentin Bockmair、Alexander Nitzer、Andreas J. Kornath
DOI:10.1002/ejic.202200501
日期:2022.12.16
systems leading to the formation of the O-diprotonated species [C4H8N2O2]2+. Due to the protonation the nitrogen lone pair contributes completely to the formation of the C=N π-bond and the C=N double bondcharacter is stabilized.
富马酰胺与不同的超强酸系统反应,导致形成 O-二质子化物质 [C 4 H 8 N 2 O 2 ] 2+。由于质子化,氮孤对完全有助于 C=N π 键的形成,并且 C=N 双键特性得到稳定。
Curtius, Chemische Berichte, 1912, vol. 45, p. 1078